Re: basic::string Formatting

From: (Stefan Ram)
30 Mar 2014 23:51:52 GMT
<> (Mike Copeland) writes:

  Is there a more convenient/simple way to specify string formatting
than the following?

 ostringstream ossw;
 string str;
 long nts;
 ossw.str(""), ossw << left << setw(12) << nts, str = ossw.str();

  I have much of this type of code, with many setw() calls and various
right and left modifiers. It would be a lot simpler to have something
like "setwleft(12)" or something like that to reduce my code. (It might
execute faster, too...)

  What's wrong with a function definition for repeating code?

::std::string printwleft( int const width, long const value )
{ ::std::ostringstream stream {};
  stream << ::std::left << ::std::setw( width )<< value;
  return stream.str(); }

  You can also look at the more elaborate code in
From: Luca Risolia <>
Newsgroups: comp.lang.c++
Subject: Re: printing in C++
Date: Thu, 14 Mar 2013 20:35:22 +0100
Message-ID: <kht8pn$ndh$>

  that shows how to create a custom manipulator.

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